Web Forms :: Can Hook Client Side CSS Up To The Validation Controls
Mar 11, 2011
I want to be able to do something like display an image for required fields. If the field is filled in and passes validation, the image is replaced with another image. If the field is not filled in or is filled in incorrectly, I want the initial image to replaced by still another. For example, the initial image can be a red star. A green check mark can be the image for a valid field, and a red "X" can be the image for a missed or invalid field.
Another post pointed me to [URL] which seemed to contain my anwer in the Bypassing Client Validation / Special effects section, but it only works in IE!
Doing all my own client side validation is not a good alternative. Does anyone know how I can style anything other then the input control (or the validation controls) when the input control fails to validate and before the postback?
Is it possible to do client side validation on a detailsview (insert or edit) without using validation controls? I.E. somehow capture the onClientClick event of the autogenerated Insert/Update link buttons to call my javascript function?
want to know that can we validate a control which is out side a form element in asp.net(server side validation)and outside a form element in html(client side validation) let's take a closer look
I'm interested in identifying a means to verify the server-side validation is performing as expected, but need to bypass the client-side validation being done using ASP.NET validation controls. To test this, I've tried using the form Poster add-on to Firefox that allowed me to get/modify the page contents and post it, but the .NET framework interpreted the submission as harmful and threw an application error ("A potentially dangerous Request.Form value was detected from the client").I've created a WinForm that includes a WebBrowser control and I'm able to manipulate the contents of the web page and invoke the button click, but am interested in seeing how to allow a postback with invalid input values. I don't want to assume the server-side validation works (even though I do check if Page.IsValid on the server on postback).This submits the web form in the WebBrowseer control and the expected client-side validation fires: extendedWebBrowser1.Document.GetElementById(formButtonName).InvokeMember("click"); This is how I've manipulated some of the page contents (this just prevents submission): mshtml.IHTMLDocument2 doc = extendedWebBrowser1.Document.DomDocument as mshtml.IHTMLDocument2; string html = doc.body.innerHTML; html.Replace("Page_ValidationActive = false", "Page_ValidationActive = true"); doc.body.innerHTML = html.ToString(); extendedWebBrowser1.Document.GetElementById(formButtonName).InvokeMember("click");
I have a custom control which I need to be able to operate with the validation controls available within asp.net. I would like the message to be shown to the user client-side so as not having to wait for a postback each time.I have the ValidationPropertyAttribute("value") set at the top of the control. However it is still being completely ignored by the validation controls. I have found the following from microsoft, but I'm not sure I'm interpreting it correctly, could someoneIn order to be referenced by a validation control, a control must have a validation property. All controls that can be validated have a ValidationPropertyAttribute, which indicates which property should be read for the purposes of validation. If you write your own control, you can make it take part in validation by providing one of these attributes to specify which property to use.
Is there any way to add a confirmation dialog to a submit button when the form already has other validation controls and a summary control using "showmessagebox=true"? I tried adding
OnClientClick="return confirm('Are you sure?');" to the submit button, but that seems to block all of the other validation?
If I enable client side validation in the view I'll get the error per the Attributes from the metadata class. If I take clientside validation out, error gets thrown from saving to the DB rather than return the view with an Error Summary.
This is the top portion of my view....
<% using (Html.BeginForm()) {%> <%: Html.ValidationSummary(true) %>
I've tried running without debugging (ctrl + f5) in debug and release mode as well as setting breakpoints and Debugging (f5) but it just seems weird to get Client side validation without server side validation. What am I missing here?
if in the code behind, I set the label to "You must enter a value if the textbox is empty" to validate it on the server side and this is fine, but if javascript is enabled, I don't want to show the client side validation and the server side label together. Is this something where I would just have to disable the client-side validators if javascript was enabled?
I'd like to implement ajax message box that will gather information from validators on a page when client-side validation fires. Like: I have left some text fields blank then press submit button and appropriate RequiredFieldValidators show messages. I would like my message box shows those messages too. I am looking for appropriate way to hook on validators JS event or something.
As per requirement I disabled all validation controls in page on PageLoad event in server side.
On clicking submit button I want to activate them and validate the page and if the page is ok submit other wise not.
I am able to enable all validaters but one thing that I am unable to understand is that they do not validate the page. I set alerts and check they are being enabled but they do not validate the page and let the page submit.
I have Two asp.net Textbox In 1st Textbox Contain ForExample:- 3000 it may be anything,
and 2nd Textbox Will enter by user... What i need is whenever user enter below 3000 or equal to 3000 then itz ok message will display otherwise if 2nd textbox values goes to 3001.. then i need to show a message in client side itself... Plz check Quantity message...
i have tried comparefield validator with lessthenorequal itz not working...
I use the oob client side validation from mvc 2 RC. The input field validation errors are working fine. But the validation summary is missing. How to get the validation summary on client side validation?
When i use Validator callout extender and as well both client side java script validation , both are not working at a same time.I use java script code for dynamic checkboxes to be atleast one checkbox must be checked.When i use onclient click only javascript validations are fired, when use onclick function javascript code is not working.
I am having issues correctly setting up reference to javascript code to a custom validator.This is my javascript code in the .aspx page.
[Code]....
And here is where I add the Client Validation to the customer validator in the code behind. [Code]....
The validation is if there is a value present in the first text box then the second text box is required.The page throws an error when the validation should fail, but if I ignore the error the validation works correctly.Do I need to move my javascript to the code behind as well?
I have 4 forms in my asp.net mvc view.I have enabled client side validation on each by put <% Html.EnableClientValidation(); %> Above Html.BeginForm()of each form.The issue is that regardless of the fact that I've specified ID's for the forms the first form on the page gets validated whenever I click submit of the other forms. Is this usage supported?
I have in the fact copied the code of Login page in the ASP.NET MVC application template (provided with VS). In the original template, client side validation is working but when I copy all the connected code I get only server side validation (no red fields, post back even if data are incorrect).
public class LogOnModel { [Required] [Display(Name = "User name")] public string UserName { get; set; } [Required] [DataType(DataType.Password)] [Display(Name = "Password")] public string Password { get; set; } [code]...
I have tried everything to get client-side validation to work in MVC2 RC, but have been completely unsuccessful. Server-side validation works just fine, but client-side never fires. I have grabbed
[Code]....
from the futures source, since it wasn't included in RC. Unfortunately, that's the only script that people agree is necessary for everything to work. Besides that, nobody seems to know which other specific js scripts are needed. The candidates are (jquery-1.3.2.js, jquery.validate.js, MicrosoftMvcAjax.js, MicrosoftMvcJQueryValidation.js). I've tried every permutation of these and other scripts to no avail.
Html.EnableClientValidation() has been included before BeginForm, and the JSON validation data appears to be correctly written into the source of the page. But, again, client-side validation never fires.
I have number of fields in the view, which I am dynamically showing/hiding on the client side using jQuery e.g, if user enter 'abc' in first field, I will show three more fields and if he enters 'xyz' then I will show only single field.
I am using data annotations based Asp.Net MVC 2 validation (MVC 2 RTM) and the requirement is that only visible fields should be validated. I have added some code on the server side and the partial validation is working fine there but the issue is on the client side. Actually it works fine first time but fails after wards.
Here is what I am doing:
In $(document).ready event I am popping all the validation stuff in the array as shown below:
for (i = 0; i < numOfFields; i++) { fValidationArrL[i] = window.mvcClientValidationMetadata[0].Fields.pop(); }
When I show/hide the fields I push only those fields which are visible like this:
It works fine first time but second time when I do show/hide again, it appends the validation list instead of replacing it. So at the end it will validate all the fields that I have shown to the user at some point of time.
I have MaskedEditValidator, which set u pt ovalidate datetime entry into text box. After that the button (html button input control )is pressed in order to start some process. Button is running the client side function (JavaScript).
Now in case of wrong input validator shows proper message, but how I can prevent button to be pressed and start the process. I.e. is it possible to check on client side the status of the validation?
I have a problem of Validation still present for list object that have been dynamically deleted in the View. Here is the scenario. In my model I have a list. This list can be added and deleted dynamically in create and edit views. Lets say I am in the create view. I add two list objects dynamically and start filing the object and submit the form. The model validation fails in the server side (client side validation cannot be done as it involes some complex logic) because of some errors. Now the errors are being disaplayed for the two objects. Now I delete the first list object dynamically and correct the errors in the second list object and try to submit but the form will not submit because, the client side validation still thinks that the first list object is still present. Is there anyway to remove the client validation for objects that have been removed dynamically ?
My model
Contact.cs:
public class contact{ public List<Address> address; }
Steps for the problem.
1. Create two addresses in the create view.
2. Fill the fields and click submit.
3. Server side Model validation will report errors for fields.
4. Delete the first Address and correct the errors in the second object and click submit.
5. Submit will not work because the client side validation expects the errors to be corrected in the first Address which has been deleted.
I have a wizard style MVC 2.0 application, when I move forward I want client side validation to kick in and validate the form, but when I hit the back button I want the data entered by the user posted back to the server so I can save what they have entered, but without any client validation.
